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Phase 1 week 2 - immune > Bacteria > Flashcards

Flashcards in Bacteria Deck (21):
1

Are bacteria multicellular or single cells?

Single

2

Are bacteria prokaryotes or eukaryotes

Prokaryote

3

What are the 2 main categorie sof bacteria

gram positive and gram negative

4

Describe the cell wall of gram positive bacteria

Has a thick layer of peptidoglycans to which the stain adheres

5

What colour do gram positive bacteria stain

pink

6

Describe the cell wall of gram negative bacteria

Thin layer of peptidoglycan surface to which the stain does not adhere. (0.5 mark)

7

What colour do gram negative bacteria stain

blue/purple

8

Define bacteria colonisation

Symbiotic and natural living benefits between 2 species which may be beneficial to one or both of them, and does not cause any harm

9

Define bacterial infection

colonisation that results in the multiplication of pathogens or organisms that may cause harm to the host/the manifestation of disease

10

Name some sites in the body that are sterile from bacteria

CNS
Blood, tissues and organs
eye
sinuses
inner and middle ear

11

Name some sites of the body where bacteria colonises

throat
mouth
vagina
skin
nose

12

Name a common infection of the respiratory system and the bacteria that cause it

pneumonia and streptococcus pneumoniae

13

Name a common infection of the gastrointestinal system and the bacteria that causes it

Cholecytisis and gut flora

14

Define sepsis

A physiological response to a severe infection involving cytokine cascades, free radical production and vasoactive mediators

15

Name some principles of treatment of infection

Investigate
conservative
antibiotics
surgical
infection control
public health

16

Name some principles of treatment of infection

Investigate
conservative
antibiotics
surgical
infection control
public health

17

What is the chain of infection

Infectious agent
resevoir
portal of exit
means of transmission
portal of entry
susceptible host

18

Name some infection control precautions

Handwashing
ppe equipment
isolation

19

Name some factor that lead to infection

Presence of foreign objects
age
gender
ethnicity
immunocompromised ie. HIV

20

Define cocci

shape of the bacteria - it is a sphere

21

Define bacilli

Shape of the bacteria - it is a rod shape